X = ?
D
A
B
C
X
22
INSTALLATION AND ASSEMBLY
iV-Office ventilation device
•
Installation and operating instructions
4.4
Installing the wall sleeve
Measuring tape, angle grinder, spirit level, non-pressing 2K polyurethane foam, cutter,
mounting wedge set and protective discs
Requirements:
The wall opening Ø 270 mm is finished.
The fan BUS is installed.
►
Trim the wall sleeve to the determined dimension
X
.
Be careful not
to cut away the cut-out for the
fan BUS.
►
Remove the protective discs from the wall sleeve.
►
Insert the wall sleeve into the wall opening so it
is flush with the interior wall. Note the thickness
of the plaster.
Ensure
that the cut-out for the fan BUS is on the
interior wall side and near the plaster/masonry slot.
►
Guide the fan BUS through the cut-out in the
wall sleeve.
►
Determine the exact wall thickness X.
Add the thickness
of the render (D),
insulation (C), masonry (B) and plaster (A).
X =
A+B+C+D
